code: def min_index(df, axis=None, skipna=True):
      use_inf_as_na = options.dataframe.mode.use_inf_as_na
      op = DataFrameMin(
          axis=axis,
          skipna=skipna,
          output_types=[OutputType.scalar],
          use_inf_as_na=use_inf_as_na,
      )
      return op(df)
  
file_path: mars/mars/dataframe/reduction/min.py
imports: from ...None import opcodes
  from ...config import options
  from ...core import OutputType
  from .core import DataFrameReductionOperand, DataFrameReductionMixin
label_desc: Use image node_id 3 for calling a global function with example usage: min_index(df, axis, skipna) and returns: op